Question about HP LaserJet 5550DN Printer
Firmware error, try perform a cold reset on the printer.
Turn off and on the powerswitch, when printer start count memory press enter button until select language came up in display, release the enter button, use the arrow until cold reset is displayed, press enter and the printer will reboot. When the printer goes to ready upgrade firmware on it.
Posted on Dec 08, 2008
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Posted on Jan 02, 2017
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